A nurse is collecting data from a newborn who has respiratory distress syndrome and is experiencing respiratory acidosis. Which of the following risk factors predisposes the newborn to respiratory difficulties?
Small for gestational age.
Maternal history of asthma.
Ventricular septal defect.
Cesarean birth.
The Correct Answer is A
Choice A reason:
Small for gestational age (SGA) newborns are at risk for respiratory distress syndrome (RDS) and respiratory acidosis because they have immature lungs that produce less surfactant, which is needed to keep the alveoli open and prevent atelectasis. SGA newborns also have less glycogen stores, which can lead to hypoglycemia and impaired oxygen delivery to the tissues.
Choice B reason:
Maternal history of asthma is not a risk factor for RDS or respiratory acidosis in the newborn. Asthma is a chronic inflammatory disorder of the airways that affects the mother, not the fetus. Maternal asthma can cause complications such as preterm labor, preeclampsia, or intrauterine growth restriction, but it does not directly affect the fetal lung development or function.
Choice C reason:
Ventricular septal defect (VSD) is a congenital heart defect that causes a hole in the wall between the ventricles of the heart. This can result in increased pulmonary blood flow and pressure, which can lead to pulmonary edema and heart failure in the newborn. However, VSD does not cause RDS or respiratory acidosis, which are related to lung maturity and surfactant production.
Choice D reason:
Cesarean birth is not a risk factor for RDS or respiratory acidosis in the newborn. Cesarean birth can increase the risk of transient tachypnea of the newborn (TTN), which is caused by delayed absorption of fetal lung fluid. TTN usually resolves within 24 to 48 hours and does not cause a significant acid-base imbalance in the newborn.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A reason:
Smoking is the most significant risk factor for clubfoot, according to several studies that have found a strong association between maternal smoking during pregnancy and the occurrence of clubfoot in the offspring. Smoking may affect the development of the muscles and tendons in the fetus, leading to abnormal positioning of the foot.
Choice B reason:
Trauma during pregnancy is not a significant risk factor for clubfoot, as there is no evidence that physical injury to the mother or the fetus can cause this deformity. Clubfoot is a congenital condition that is present at birth and usually detected by prenatal ultrasound.
Choice C reason:
Hypertension is not a significant risk factor for clubfoot, as there is no evidence that high blood pressure in the mother or the fetus can cause this deformity. Clubfoot is a congenital condition that is present at birth and usually detected by prenatal ultrasound.
Choice D reason:
Decreased circulation is not a significant risk factor for clubfoot, as there is no evidence that poor blood flow to the mother or the fetus can cause this deformity. Clubfoot is a congenital condition that is present at birth and usually detected by prenatal ultrasound.
Correct Answer is A
Explanation
Choice A reason:
FAS is caused by alcohol, and NAS is caused by opioids. This is the correct answer because FAS stands for fetal alcohol syndrome, which is a group of physical and mental defects that can occur in a baby when a woman drinks alcohol during pregnancy. NAS stands for neonatal abstinence syndrome, which is a group of problems that can happen when a baby is exposed to opioid drugs for a length of time while in their mother's womb.
Choice B reason:
FAS and NAS are both incurable. This is incorrect because FAS and NAS have different outcomes. FAS is incurable because the effects of alcohol on the developing brain and body are permanent. NAS, however, can be treated with medication and supportive care to help the baby cope with withdrawal symptoms and prevent complications.
Choice C reason:
FAS and NAS are both curable. This is incorrect because FAS is not curable, as explained above. NAS can be treated, but not cured, because some babies may have long-term problems such as developmental delays, behavioral issues, or learning difficulties.
Choice D reason:
FAS is caused by analgesics and NAS is caused by NSAIDs. This is incorrect because FAS is caused by alcohol, not analgesics, which are painkillers. NAS is caused by opioids, not NSAIDs, which are anti-inflammatory drugs. Analgesics and NSAIDs do not cause the same type of damage to the fetus or the newborn as alcohol and opioids do.
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